[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/x86/Makefile b/src/kernel/linux/v4.14/sound/x86/Makefile
new file mode 100644
index 0000000..7ff9198
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/x86/Makefile
@@ -0,0 +1,4 @@
+snd-hdmi-lpe-audio-objs += \
+	intel_hdmi_audio.o
+
+obj-$(CONFIG_HDMI_LPE_AUDIO) += snd-hdmi-lpe-audio.o